Not sure what's the correlation with her job/class with her being rarely or never in relationship before. Isn't it just because she never found her right man before she met Shin? And despite her teasing and seductive methods, she only let Shin to touch and feel her up like that, which showed that she's that slutty to only one man (the right man, even if she hasn't realized it yet). In fact, it's only a problem (bitter disappointment because of false hope) if you're not in her party. And even in her party, it's only Shin that she seduced; not Raid.Yeah, so far Nina's probably lowest for me here. I don't dislike her, as I understand her job has her doing underhanded means to get what she wants, even using her body to some extent, and I don't know how much freedom people have in choosing their jobs/classes in this story, but this chapter pretty much showed she'll rarely, if not never be sincere in relationships. She's a valuable member in a party, sure, but I wouldn't trust her to have the commitment to stay for long, both in parties and relationships.